3 years ago

Emission of which one of the following leaves both atomic number and mass number unchanged?

Chemistry

1 answer:

Alecsey [184]3 years ago

4 0

Answer: Gamma Radiation

Explanation:

The emission of Gamma rays does not cause a change in both the atomic and mass number. They are electromagnetic radiation.

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HELP ME, HOW? Draw on the graph a line that shows the car decelerating steadily to a stop from point D in 10 s. Mark the point w

Lady bird [3.3K]

Answer:

There is no deacceleration.

Explanation:

Let's check relation between velocity and acceleration

$\\ \rm\Rrightarrow a=\dfrac{dv}{dt}$

$\\ \rm\Rrightarrow a\propto dv$

So as velocity graph is going up acceleration is going up

Those flat lines on graph shows constant acceleration .

Curve lines up shows instantaneous acceleration.

If the graph is going down then it can be deacceleration .

Note :-No F is present in graph

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2 years ago

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The ion with 36 electrons, 34 protons, and 44 neutrons

Reil [10]

While the number nuclear protons as given is 34, and therefore we deal with the element selenium, there are 2 more electrons than protons, and therefore this species has an overall
2
−
charge.
We represent this selenide ion as
S
e
2
−
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Z= 34, therefore the atom is selenium

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3 years ago

Which branch of chemistry would study how pollution effects marine life?

mart [117]

Answer: (D) environmental chemistry

Explanation:

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3 years ago

Which substance is a reducing agent? A. CO B. F2 C. CO2 D. H2O2 E. FeSO4

IRISSAK [1]

H2O2

$\mathtt \red{Hope \: it \: helps}$